CEFAS21-34 ITT BEEMS Subtidal Sabellaria Survey 2021

Cefas require the successful Tenderer to deliver all requirements, i.e. the provision to supply all services required including vessel, Staff/technicians, equipment with suitable insurance, data processing, reports and supply.

Please note that the survey area may be amended, but will be agreed with the successful Tenderer.

A vessel, crew, survey team, and suitable equipment are required to undertake a side-scan sonar survey and an Aris camera survey within the area shown above in pink. The total area is approximately 5.3km2 and is in the vicinity of Hinkley Point nuclear power station, Bridgwater Bay, Severn Estuary.

The side-scan sonar survey should be run to obtain full coverage of the area with 200% overlap along lines. The side-scan sonar will be capable of operating at a frequency which gives the amount of detail needed to identify Sabellaria formations in the processed side-scan data. A frequency of around 600 kHz has given good results in previous surveys. Preferably, the side-scan sonar data should be processed on the vessel, or alternatively processed ashore at the end of each day so that the Aris camera survey can be planned during the geophysical acquisition. A full report will be required along with processed and raw format data.

FOR FULL DETAILS VISIT: https://defra.bravosolution.co.uk/go/363733300177F3BC29B1

Additional information:

Bravo E-tendering Portal - managing procurement on behalf of Cefas https://defra.bravosolution.co.uk

Thank you for your interest in tendering for this requirement, You will need to access the documents through Bravo Solutions portal using the link provided.

If you are new to Bravo, you are required to register as a supplier:

1. Visit https://defra.bravosolution.co.uk and click the link to register - Accept the terms and conditions and click 'continue' - Enter your correct business and user details - Note the username you chose (usually your email address) and click 'Save' when complete - You will shortly receive an email (check spam filters if this does not arrive in a timely manner) with your unique password (please keep this secure). You can then log onto the system and change your password. Once these step are completed you can apply for any tender on Bravo using these details.

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